CN105064213A - Main cable splay saddle for self-anchorage suspension bridge - Google Patents
Main cable splay saddle for self-anchorage suspension bridge Download PDFInfo
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- CN105064213A CN105064213A CN201510538480.1A CN201510538480A CN105064213A CN 105064213 A CN105064213 A CN 105064213A CN 201510538480 A CN201510538480 A CN 201510538480A CN 105064213 A CN105064213 A CN 105064213A
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Abstract
The invention discloses a main cable splay saddle for a self-anchorage suspension bridge. The main cable splay saddle comprises a lower saddle body, an upper saddle cover, a clamping cover and a base plate. A plurality of partition plates are arranged in guide slot ways in a rear saddle body of the lower saddle body and used for separating main cable strands in different columns. The upper saddle cover and the rear saddle body form a cable strand dispersing section, and the main cable strands are vertically arranged. The upper saddle cover and a middle saddle body form a cavity section. The shape that the main cable is in circular transition in a clamping section and the cable strands in the cable strand dispersing section are vertically arranged is ensured. The clamping cover and a front saddle body form the clamping section, and clamping force and anti-slid frictional resistance are provided. The base plate is fixed to the lower portion of the lower saddle body and used for fixing the whole main cable strand dispersing structure. The main cable strand dispersing structure has the advantages of both the splay saddle and a splay sleeve. A single space cable strand can be dispersed at different angles in the transverse and vertical directions, and the cable strands on the same column in the main cable can be anchored on a stiffening beam anchorage face in the same row, so that the vertical size of the anchorage face is reduced, anchorage is achieved by means of bridge transverse width so that the height of the stiffening beam can be reduced, main cable strands in the cable saddle can be easily and conveniently constructed, the installation precision of the cable strands can be controlled, and the main cable splay saddle can be applicable to the large-span anchorage type suspension bridge and has high economic benefits.
Description
Technical field
The present invention relates to a kind of main push-towing rope for self-anchored suspension bridge to fall apart cable saddle.
Background technology
At present, finished main cable shape of self-anchored suspension Cable Structure of faling apart mainly contains loose cable saddle and loose noose two kinds, and loose Cable Structure is arranged in face of anchoring and holds, and is scattered by main cable strand at vertical direction and horizontal direction, introduces each anchor point; Loose cable saddle is similar with main cable saddle, arranges the tank circuit and main cable strand is divided into symmetrical ranks by dividing plate in saddle, after main cable strand apportion enters loose cable saddle, scatters in the tank circuit behind a turn small angle by row; For adapting to construction and main push-towing rope length travel during runing, bottom the saddle of loose cable saddle, slide plate or hinge support are set.Loose noose is arranged at theoretical loose Suo Dianshang, and shape is like tubaeform, and main cable strand enters loose noose from flaring small end, after large end sheds, directly connect anchor face.In loose noose, main push-towing rope center position is constant, and follows main push-towing rope motion.
If self-anchored suspension bridge adopts loose cable saddle structure, main push-towing rope center line has vertical corner at saddle place, ensures that main push-towing rope and cable saddle never depart from, and when strand goes out saddle, strand section is comparatively even, stressed favourable to strand steel wire.But main push-towing rope can be applied to loose cable saddle base position stiff girder because of the vertical force component that corner produces, and causes additional bending moment to it, unfavorable to stiff girder; Require the anchor face that stiff girder provides larger after main push-towing rope corner, need to strengthen deck-molding, deficiency in economic performance.According to loose noose structure, main push-towing rope center remains unchanged, only by loose noose constraint main push-towing rope radial dimension and shape, on the stressed not impact of stiff girder; But when main cable strand scatters, Suo Li support falls apart noose upward sliding, and needing to arrange clamp segment provides clamping force and friction resistance to sliding power; Main cable strand does not establish the tank circuit and dividing plate in loose noose, and strand is linear is difficult to accurate location, thus cannot its rope of accurate Calculation long; For making loose noose uniform force, main cable strand is vertical laterally must evenly scatter, otherwise strand there will be staggered extruding situation, therefore class circle can only be made in anchoring face, anchoring face shape can not be changed, large across in the more situation of finished main cable shape of self-anchored suspension strand, anchoring face then needs to make very large, and economic benefit is low.
For little across footpath self-anchored suspension bridge, main push-towing rope small scale, loose cable saddle and loose noose all can be suitable for, but for Long span self-anchored suspension bridge, both shortcomings are all exaggerated, and applicability and economy all reduce.
Summary of the invention
The invention provides a kind of main push-towing rope for self-anchored suspension bridge to fall apart cable saddle, have the advantage of loose cable saddle and loose noose concurrently, single space strand can be made anyhow to scatter to different angles, also the same column strand in main push-towing rope can be made on stiff girder anchoring face to arrange anchoring with same, thus anchoring face vertical dimension can be reduced, utilize the anchoring of bridge lateral width, to reduce stiff girder deck-molding, main cable strand easy construction in cable saddle can be made, the installation accuracy of strand can be controlled, Long span self-anchored suspension bridge can be applicable to, have higher economic benefit.
In order to achieve the above object, the invention provides a kind of main push-towing rope for self-anchored suspension bridge and to fall apart cable saddle, comprise:
Lower saddle body, this lower saddle body comprises anterior saddle body, middle part saddle body and rear portion saddle body, and described rear portion saddle body has some guiding tank circuits, and the described guiding tank circuit is circular arc;
Some dividing plates, it is arranged in the guiding tank circuit, for by main cable strand apportion; The thickness that dividing plate is positioned at lower saddle body mouth place is greater than the thickness of dividing plate remainder, make dividing plate form strand in lower saddle body exit and put down curved small arc-shaped, dividing plate remainder forms strand and puts down curved orthodrome, and the radius that described strand puts down curved small arc-shaped is less than the radius that described strand puts down curved orthodrome;
Upper saddle lid, it is fixedly installed on saddle body top, cover rear portion saddle body and middle part saddle body, this Shang Angai and rear portion saddle body form loose rope section, realize the perpendicular row arrangement of main cable strand, on this, saddle lid and middle part saddle body form cavity segment, ensure that main push-towing rope erects row spread geometry at the rounded transitional of clamp segment to the strand of rope section of faling apart;
Clamp cap, it is fixedly installed on saddle body top, covers anterior saddle body, and this clamp cap and anterior saddle body form clamp segment, provide clamping force and friction resistance to sliding power;
Bed plate, it is fixedly installed on lower saddle body bottom, to fall apart Cable Structure for fixing whole main push-towing rope.
The arc length of the described guiding tank circuit needs to ensure that the point of contact of main cable strand is in circular arc.
Described lower saddle body also comprises: slidable panels, and it is fixedly mounted on the bottom surface of lower saddle body.
Described bed plate also comprises: sliding support plate, and it is fixedly mounted on the end face of bed plate.
Described bed plate also comprises: some blocks, and it is fixedly mounted on the two sides of bed plate, is subjected to displacement relative to bed plate for limiting lower saddle body.
The present invention has the advantage of loose cable saddle and loose noose concurrently, single space strand can be made anyhow to scatter to different angles, also the same column strand in main push-towing rope can be made on stiff girder anchoring face to arrange anchoring with same, thus anchoring face vertical dimension can be reduced, utilize the anchoring of bridge lateral width, to reduce stiff girder deck-molding, main cable strand easy construction in cable saddle can be made, the installation accuracy of strand can be controlled, Long span self-anchored suspension bridge can be applicable to, have higher economic benefit.
Accompanying drawing explanation
Fig. 1 is that the main push-towing rope for self-anchored suspension bridge provided by the invention falls apart the explosive view of cable saddle.
Fig. 2 is the front view of Fig. 1.
Fig. 3 is A-A face sectional view in Fig. 2.
Fig. 4 is B-B face sectional drawing in Fig. 2.
Fig. 5 is C-C face sectional view in Fig. 2.
Fig. 6 is D-D face sectional view in Fig. 2.
Fig. 7 is E-E face sectional view in Fig. 2.
Fig. 8 be main cable strand in D-D face, the sectional drawing in E-E face and C-C face.
Fig. 9 is partition shape change plan view schematic diagram.
Detailed description of the invention
Following according to Fig. 1 ~ Fig. 9, illustrate preferred embodiment of the present invention.
As shown in Fig. 1 ~ Fig. 7, the invention provides a kind of main push-towing rope for self-anchored suspension bridge and to fall apart cable saddle, comprise:
Lower saddle body 1, this lower saddle body 1 comprises anterior saddle body 11, middle part saddle body 12 and rear portion saddle body 13, described rear portion saddle body 13 have some guiding tank circuit (not shown)s, the described guiding tank circuit is circular arc, and the arc length of the described guiding tank circuit needs to ensure that the point of contact of main cable strand is in circular arc;
Some dividing plates 5, it is arranged in the guiding tank circuit, for by main cable strand apportion; Described dividing plate 5 is greater than the thickness of dividing plate remainder at the thickness near lower saddle body 1 exit, dividing plate 5 is made to put down curved small arc-shaped near lower saddle body 1 exit formation strand, dividing plate remainder forms strand and puts down curved orthodrome, and the radius that described strand puts down curved small arc-shaped is less than the radius that described strand puts down curved orthodrome;
Upper saddle lid 2, it is fixedly installed on saddle body 1 top, cover rear portion saddle body 13 and middle part saddle body 12, on this, saddle lid 2 and rear portion saddle body 13 form loose rope section, realize the perpendicular row arrangement of main cable strand, on this, saddle lid 2 and middle part saddle body 12 form cavity segment, ensure that main push-towing rope erects row spread geometry at the rounded transitional of clamp segment to the strand of rope section of faling apart;
Clamp cap 3, it is fixedly installed on saddle body 1 top, covers anterior saddle body 11, and this clamp cap 3 forms clamp segment with anterior saddle body 11, provides clamping force and friction resistance to sliding power;
Bed plate 4, it is fixedly installed on lower saddle body 1 bottom, to fall apart Cable Structure for fixing whole main push-towing rope.
Described lower saddle body 1 also comprises:
Slidable panels 6, it is fixedly mounted on the bottom surface of lower saddle body 1;
Some lower saddle body stiff girders 101, it is arranged on the two sides of lower saddle body 1, for strengthening intensity.
Described upper saddle lid 2 also comprises some upper saddle lid stiff girders 201, and it is arranged on the top of saddle lid 2, for strengthening intensity.
Described bed plate 4 also comprises:
Sliding support plate 7, it is fixedly mounted on the end face of bed plate 4;
Some blocks 8, it is fixedly mounted on the two sides of bed plate 4, departs from bed plate 4 for limiting lower saddle body 1.
In a specific embodiment, install a kind of main push-towing rope for self-anchored suspension bridge provided by the invention fall apart cable saddle time, first bed plate 4 is installed on interim tooling bracket at a certain angle, again lower saddle body 1 is kept flat the end face of bed plate 4, the slidable panels 6 of lower saddle body 1 bottom surface build-in adopts corrosion resistant plate, the sliding support plate 7 that bed plate 4 end face is installed adopts polyfluortetraethylene plate, the polyfluortetraethylene plate 7 that corrosion resistant plate 6 can be installed at bed plate 4 end face slides, then by the per share interval being packed into the dividing plate 5 of lower saddle body 1 by design sequence of main cable strand, saddle lid inwall 2mm on dividing plate apex distance, after strand installation, cover saddle lid 2 and clamp cap 3, tighten saddle lid 2 and the high-strength bolt 9 between clamp cap 3 and lower saddle body 1, and the high-strength bolt 9 tightened between saddle lid 2 and clamp cap 3, then the link stopper 8 on mounting seat plate 4, bolt 801 is utilized block to be fixed on bed plate 4 both sides, the vertical displacement upwards of the lower saddle body 1 of restriction is to avoid being separated from bed plate 4 under main push-towing rope drives, finally remove interim tooling bracket, be fixed on stiffening girder of suspension bridge by crab-bolt 10 main push-towing rope fallen apart Cable Structure, complete installation.
A kind of main push-towing rope for self-anchored suspension bridge provided by the invention cable saddle that falls apart functionally can be divided into four parts along main push-towing rope direction: Part I is the clamp segment shown in Fig. 6, provides clamping force and friction resistance to sliding power by the high-strength bolt tightened between clamp cap and lower saddle, Part II is the loose rope section shown in Fig. 5, by arrange on lower saddle body guiding the tank circuit and dividing plate by main cable strand apportion, dividing plate is vertically inserted in 3 centimetres of dark gaps reserved on the guiding tank circuit or is welded on the tank circuit, the strand columns that baffle for separating goes out is consistent with main push-towing rope cross section strand columns, the center line of each strand is space curve, it is linear puts down curved projection line by strand and perpendicular curved projection line synthesizes, the flat curved line of the linear strand be in contact with it in the guiding tank circuit and baffle plate configuration face is consistent, gap width between dividing plate is substantially identical with strand width, this width only is slightly done to change for adapting to the different flat bending angle of same column strand in the certain limit of exit, this change is realized by adjustment baffled outlet place thickness, strand edge steel wire and loose rope section inwall, fall apart the tangent accurate location of circular arc on dividing plate Suo Fangxiang.General loose noose non-inductive windings, strand freely goes out saddle, and the edge strand near strand cover is often squeezed into flat ellipse, and loose Cable Structure exists because of dividing plate, and when sub-thread rope goes out loose cable saddle, section is still rectangle, therefore makes steel wire not occur to reverse extruding alternately.After strand goes out saddle, adapt to strand and erect by the point of contact change of strand on the guiding tank circuit and dividing plate circular arc and the change of exit block board thickness the change arranging horizontally-arranged number, the cusp position of each strand on circular arc is determined by the distance of loose Cable Structure distance strand anchoring face (the C-C face in Fig. 8) and the spatial coordinate location of each strand in anchoring face, as shown in Figure 9, need during arc length design to ensure that point of contact is in circular arc, for adapting to because of the horizontally-arranged number change of the perpendicular row of strand, namely the strand (between dividing plate 501 and dividing plate 502) in same perpendicular row needs to anchor on the anchoring face of different lines, therefore when going out saddle, need different flat bending angles, therefore a strand is done again in the end of dividing plate 502 in the basis of putting down curved orthodrome R1 at the strand of dividing plate 502 put down curved small arc-shaped R2(Fig. 9), the strand point of contact making flat bending angle large is put down in curved small arc-shaped R2 at end strand, the strand point of contact that flat bending angle is little is put down in curved orthodrome R1 at the former strand of dividing plate, therefore the designed arc-shaped appearance of dividing plate and the guiding tank circuit should be able to adapt to the change at this point of contact, Part III is the cavity segment shown in Fig. 7, and this cavity ensures that main push-towing rope erects row spread geometry from the rounded transitional of clamp segment to loose rope section strand, Part IV is bed plate, and loose Cable Structure, by lower saddle body bottom surface build-in corrosion resistant plate, the polyfluortetraethylene plate that bed plate end face is installed is slided, and ensures that the lower saddle body of loose cable saddle is with main push-towing rope lengthwise movement, makes this place's main push-towing rope cable power not form impact to stiff girder.
Fig. 8 be main cable strand in D-D face, the sectional drawing in E-E face and C-C face, in D-D face clamp segment, the rounded arrangement of main cable strand, in E-E face cavity segment, main cable strand transits to perpendicular row arrangement, rope section of faling apart in C-C face exit, and main cable strand is along with the rectangular perpendicular row arrangement of partition shape.
The present invention has the following advantages:
One, the different flat bending angles of same column strand and perpendicular bending angle is realized by the point of contact change of strand on the guiding tank circuit and dividing plate circular arc and the change of exit block board thickness, finally adapt to the horizontally-arranged number change of the perpendicular row of strand, thus the vertical columns of strand anchor point can be increased, reduce horizontal row, utilize the anchoring of bridge lateral width, to reduce stiff girder deck-molding, for the rope anchoring of faling apart of more strand main push-towing rope provides feasible program; Its two, the main push-towing rope center position that main push-towing rope falls apart in Cable Structure is constant, avoids this place's main push-towing rope cable power to form adverse effect to stiff girder; Its three, led by dividing plate, per share strand puts down curved perpendicular curvedly can accurately to locate, and strand installation is convenient; Its four, when sub-thread strand goes out saddle, section variation is less, and staggered extruding does not occur steel wire, can ensure the safety factor of main push-towing rope.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (5)
1. to fall apart a cable saddle for the main push-towing rope of self-anchored suspension bridge, it is characterized in that, comprise:
Lower saddle body (1), this lower saddle body (1) comprises anterior saddle body (11), middle part saddle body (12) and rear portion saddle body (13), and described rear portion saddle body (13) has some guiding tank circuits, and the described guiding tank circuit is circular arc;
Some dividing plates (5), it is arranged in the guiding tank circuit, for by main cable strand apportion; The thickness that dividing plate (5) is positioned at lower saddle body (1) exit is greater than the thickness of dividing plate remainder, make dividing plate (5) form strand in lower saddle body (1) exit and put down curved small arc-shaped, dividing plate remainder forms strand and puts down curved orthodrome, and the radius that described strand puts down curved small arc-shaped is less than the radius that described strand puts down curved orthodrome;
Upper saddle lid (2), it is fixedly installed on saddle body (1) top, cover rear portion saddle body (13) and middle part saddle body (12), on this, saddle lid (2) and rear portion saddle body (13) form loose rope section, realize the perpendicular row arrangement of main cable strand, on this, saddle lid (2) and middle part saddle body (12) forms cavity segment, ensure that main push-towing rope erects row spread geometry at the rounded transitional of clamp segment to the strand of rope section of faling apart;
Clamp cap (3), it is fixedly installed on saddle body (1) top, covers anterior saddle body (11), and this clamp cap (3) and anterior saddle body (11) form clamp segment, provide clamping force and friction resistance to sliding power;
Bed plate (4), it is fixedly installed on lower saddle body (1) bottom, to fall apart Cable Structure for fixing whole main push-towing rope.
2. to fall apart cable saddle for the main push-towing rope of self-anchored suspension bridge as claimed in claim 1, it is characterized in that, the arc length of the described guiding tank circuit needs to ensure that the point of contact of main cable strand is in circular arc.
3. to fall apart cable saddle for the main push-towing rope of self-anchored suspension bridge as claimed in claim 1, it is characterized in that, described lower saddle body (1) also comprises: slidable panels (6), and it is fixedly mounted on the bottom surface of lower saddle body (1).
4. to fall apart cable saddle for the main push-towing rope of self-anchored suspension bridge as claimed in claim 1, it is characterized in that, described bed plate (4) also comprises: sliding support plate (7), it is fixedly mounted on the end face of bed plate (4).
5. to fall apart cable saddle for the main push-towing rope of self-anchored suspension bridge as claimed in claim 1, it is characterized in that, described bed plate (4) also comprises: some blocks (8), and it is fixedly mounted on the two sides of bed plate (4), departs from bed plate (4) for limiting lower saddle body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510538480.1A CN105064213B (en) | 2015-08-28 | 2015-08-28 | A kind of main push-towing rope for self-anchored suspension bridge dissipates cable saddle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510538480.1A CN105064213B (en) | 2015-08-28 | 2015-08-28 | A kind of main push-towing rope for self-anchored suspension bridge dissipates cable saddle |
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| CN105064213A true CN105064213A (en) | 2015-11-18 |
| CN105064213B CN105064213B (en) | 2017-06-20 |
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| CN201510538480.1A Active CN105064213B (en) | 2015-08-28 | 2015-08-28 | A kind of main push-towing rope for self-anchored suspension bridge dissipates cable saddle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106192751A (en) * | 2016-08-05 | 2016-12-07 | 武汉船用机械有限责任公司 | A kind of suspension bridge vice saddle fixing tool |
| CN112247386A (en) * | 2020-08-25 | 2021-01-22 | 武汉船用机械有限责任公司 | Method for welding partition plate of main cable saddle |
| CN114059451A (en) * | 2021-11-16 | 2022-02-18 | 中交第二公路勘察设计研究院有限公司 | Cable strand arranging method for rotary main cable of suspension bridge |
| CN114606858A (en) * | 2022-03-11 | 2022-06-10 | 四川君河建设工程有限公司 | Main cable saddle for middle tower of small and medium-sized suspension bridge |
| CN114941288A (en) * | 2022-03-16 | 2022-08-26 | 中铁九桥工程有限公司 | Construction method for suspension bridge cable sleeve |
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| CN105064212A (en) * | 2015-08-28 | 2015-11-18 | 上海市政工程设计研究总院（集团）有限公司 | Main cable strand dispersing structure for suspension bridge |
| CN205035736U (en) * | 2015-08-28 | 2016-02-17 | 上海市政工程设计研究总院（集团）有限公司 | A main push -towing rope cable saddle that looses for self anchored suspension bridge |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106192751A (en) * | 2016-08-05 | 2016-12-07 | 武汉船用机械有限责任公司 | A kind of suspension bridge vice saddle fixing tool |
| CN112247386A (en) * | 2020-08-25 | 2021-01-22 | 武汉船用机械有限责任公司 | Method for welding partition plate of main cable saddle |
| CN114059451A (en) * | 2021-11-16 | 2022-02-18 | 中交第二公路勘察设计研究院有限公司 | Cable strand arranging method for rotary main cable of suspension bridge |
| CN114059451B (en) * | 2021-11-16 | 2024-04-05 | 中交第二公路勘察设计研究院有限公司 | Rope strand arranging method of suspension bridge rotary main cable |
| CN114606858A (en) * | 2022-03-11 | 2022-06-10 | 四川君河建设工程有限公司 | Main cable saddle for middle tower of small and medium-sized suspension bridge |
| CN114941288A (en) * | 2022-03-16 | 2022-08-26 | 中铁九桥工程有限公司 | Construction method for suspension bridge cable sleeve |
| WO2023173588A1 (en) * | 2022-03-16 | 2023-09-21 | 中铁九桥工程有限公司 | Construction method for splay cable sleeve of suspension bridge |
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